{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x13ded3aa8523c41277ab8544e2b5632050c3a63eab7117cbbda42a8ae5fad04f",
    "signature": "0xf42fc7897879d59d01b5ada0beda8d1ebc97f6a5540541b7d490534b7054290a3ffd53e3015e0a170c34e4e9b54bbd453c39f49411d046752facd3bc181dc4f41c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}